package cn.feng.thinkInJava.a7_3_持有对象.holding.b_11_12_00;
//: holding/InterfaceVsIterator.java
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;

import cn.feng.thinkInJava.a9_1_类型信息.typeinfo.pets.Pet;
import cn.feng.thinkInJava.a9_1_类型信息.typeinfo.pets.Pets;

public class InterfaceVsIterator
{
	public static void display(Iterator<Pet> it)
	{
	
		while (it.hasNext())
		{
			Pet p = it.next();
			System.out.print(p.id() + ":" + p + " ");
		}
		System.out.println();
	}
	
	public static void display(Collection<Pet> pets)
	{
	
		for (Pet p : pets)
			System.out.print(p.id() + ":" + p + " ");
		System.out.println();
	}
	
	public static void main(String[] args)
	{
	
		List<Pet> petList = Pets.arrayList(8);
		Set<Pet> petSet = new HashSet<Pet>(petList);
		Map<String, Pet> petMap = new LinkedHashMap<String, Pet>();
		String[] names = ("Ralph, Eric, Robin, Lacey, " + "Britney, Sam, Spot, Fluffy").split(", ");
		for (int i = 0; i < names.length; i++)
			petMap.put(names[i], petList.get(i));
		display(petList);
		display(petSet);
		display(petList.iterator());
		display(petSet.iterator());
		System.out.println(petMap);
		System.out.println(petMap.keySet());
		display(petMap.values());
		display(petMap.values().iterator());
	}
} /* Output:
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
4:Pug 6:Pug 3:Mutt 1:Manx 5:Cymric 7:Manx 2:Cymric 0:Rat
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
4:Pug 6:Pug 3:Mutt 1:Manx 5:Cymric 7:Manx 2:Cymric 0:Rat
{Ralph=Rat, Eric=Manx, Robin=Cymric, Lacey=Mutt, Britney=Pug, Sam=Cymric, Spot=Pug, Fluffy=Manx}
[Ralph, Eric, Robin, Lacey, Britney, Sam, Spot, Fluffy]
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
0:Rat 1:Manx 2:Cymric 3:Mutt 4:Pug 5:Cymric 6:Pug 7:Manx
*///:~
